feat: Add toxcore FFI.

.gitignore

@@ -45,5 +45,6 @@ app.*.map.json
 /android/app/release
 
 # Generated files
+**/generated/*
 *.freezed.dart
 *.g.dart

.restyled.yaml

@@ -2,8 +2,10 @@
 exclude:
   - "LICENSE"
   # Generated files.
+  - "**/CMakeLists.txt"
   - "linux/**/*.cc"
   - "linux/**/*.h"
+  - "tools/include/**/*.h"
   - "web/flutter_bootstrap.js"
   - "windows/**/*.cc"
   - "windows/**/*.h"

android/app/src/main/jniLibs/.gitignore

@@ -0,0 +1 @@
+*.so

cspell.config.yaml

@@ -10,9 +10,15 @@ ignorePaths:
   - LICENSE*
   - "*.json"
 words:
+  - armeabi
   - btox
+  - dylib
+  - ffigen
   - iphydf
   - kannywood
+  - libtoxcore
+  - malloc
   - nospam
   - robinlinden
+  - toxcore
   - yanciman

ios/.gitignore

@@ -32,3 +32,6 @@ Runner/GeneratedPluginRegistrant.*
 !default.mode2v3
 !default.pbxuser
 !default.perspectivev3
+
+# Vendored toxcore library.
+/Tox.xcframework

ios/Runner.xcodeproj/project.pbxproj

@@ -11,6 +11,8 @@
 		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
 		331C808B294A63AB00263BE5 /* RunnerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 331C807B294A618700263BE5 /* RunnerTests.swift */; };
 		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		64A1840F2D49A02F00130ADA /* Tox.xcframework in Frameworks */ = {isa = PBXBuildFile; fileRef = 64A1840D2D49A02500130ADA /* Tox.xcframework */; };
+		64A184102D49A02F00130ADA /* Tox.xcframework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = 64A1840D2D49A02500130ADA /* Tox.xcframework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
@@ -35,6 +37,7 @@
 			dstPath = "";
 			dstSubfolderSpec = 10;
 			files = (
+				64A184102D49A02F00130ADA /* Tox.xcframework in Embed Frameworks */,
 			);
 			name = "Embed Frameworks";
 			runOnlyForDeploymentPostprocessing = 0;
@@ -51,6 +54,7 @@
 		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
 		5ADD64A60EF720FCF56734A0 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 		5BC5ED0188408D84785CE7F3 /* Pods-RunnerTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.release.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.release.xcconfig"; sourceTree = "<group>"; };
+		64A1840D2D49A02500130ADA /* Tox.xcframework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcframework; path = Tox.xcframework; sourceTree = "<group>"; };
 		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
 		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
@@ -81,6 +85,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				033C5F025F913405F7C9F291 /* Pods_Runner.framework in Frameworks */,
+				64A1840F2D49A02F00130ADA /* Tox.xcframework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -113,6 +118,7 @@
 			children = (
 				AA2B125A12517F8F71057DEB /* Pods_Runner.framework */,
 				F10E7E459976E7D29922FCDB /* Pods_RunnerTests.framework */,
+				64A1840D2D49A02500130ADA /* Tox.xcframework */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -476,6 +482,10 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = chat.tox.btox;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
@@ -658,6 +668,10 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = chat.tox.btox;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
@@ -681,6 +695,10 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)",
+				);
 				PRODUCT_BUNDLE_IDENTIFIER = chat.tox.btox;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";

lib/api/toxcore/tox.dart

@@ -0,0 +1,82 @@
+final class ApiException<T extends Enum> implements Exception {
+  final T error;
+
+  const ApiException(this.error);
+
+  @override
+  String toString() {
+    return 'ApiException: $error';
+  }
+}
+
+abstract class Tox {
+  String get address;
+
+  bool get isAlive;
+
+  int get iterationInterval;
+
+  set name(String value);
+
+  set statusMessage(String value);
+
+  void addTcpRelay(String host, int port, String publicKey);
+
+  void bootstrap(String host, int port, String publicKey);
+
+  List<String> iterate();
+
+  void kill();
+}
+
+final class ToxConstants {
+  final int addressSize;
+  final int conferenceIdSize;
+  final int fileIdLength;
+  final int groupChatIdSize;
+  final int groupMaxCustomLosslessPacketLength;
+  final int groupMaxCustomLossyPacketLength;
+  final int groupMaxGroupNameLength;
+  final int groupMaxMessageLength;
+  final int groupMaxPartLength;
+  final int groupMaxPasswordSize;
+  final int groupMaxTopicLength;
+  final int groupPeerPublicKeySize;
+  final int hashLength;
+  final int maxCustomPacketSize;
+  final int maxFilenameLength;
+  final int maxFriendRequestLength;
+  final int maxHostnameLength;
+  final int maxMessageLength;
+  final int maxNameLength;
+  final int maxStatusMessageLength;
+  final int nospamSize;
+  final int publicKeySize;
+  final int secretKeySize;
+
+  const ToxConstants({
+    required this.addressSize,
+    required this.conferenceIdSize,
+    required this.fileIdLength,
+    required this.groupChatIdSize,
+    required this.groupMaxCustomLosslessPacketLength,
+    required this.groupMaxCustomLossyPacketLength,
+    required this.groupMaxGroupNameLength,
+    required this.groupMaxMessageLength,
+    required this.groupMaxPartLength,
+    required this.groupMaxPasswordSize,
+    required this.groupMaxTopicLength,
+    required this.groupPeerPublicKeySize,
+    required this.hashLength,
+    required this.maxCustomPacketSize,
+    required this.maxFilenameLength,
+    required this.maxFriendRequestLength,
+    required this.maxHostnameLength,
+    required this.maxMessageLength,
+    required this.maxNameLength,
+    required this.maxStatusMessageLength,
+    required this.nospamSize,
+    required this.publicKeySize,
+    required this.secretKeySize,
+  });
+}

lib/api/toxcore/tox_options.dart

@@ -0,0 +1,11 @@
+final class ToxOptions {
+  final bool ipv6Enabled;
+  final bool udpEnabled;
+  final bool localDiscoveryEnabled;
+
+  const ToxOptions({
+    this.ipv6Enabled = true,
+    this.udpEnabled = true,
+    this.localDiscoveryEnabled = true,
+  });
+}

lib/btox_app.dart

@@ -3,6 +3,7 @@ import 'package:btox/pages/contact_list_page.dart';
 import 'package:btox/pages/create_profile_page.dart';
 import 'package:btox/pages/select_profile_page.dart';
 import 'package:btox/providers/database.dart';
+import 'package:btox/providers/tox.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
@@ -31,26 +32,37 @@ final class BtoxApp extends ConsumerWidget {
                 child: Text('Error: $error'),
               ),
             ),
-            data: (db) => StreamBuilder<List<Profile>>(
-              stream: db.watchProfiles(),
-              builder: (context, snapshot) {
-                final profiles = snapshot.data ?? const [];
-                if (profiles.isEmpty) {
-                  return const CreateProfilePage();
-                }
+            data: (database) {
+              final constants = ref.read(toxConstantsProvider);
+              return StreamBuilder<List<Profile>>(
+                stream: database.watchProfiles(),
+                builder: (context, snapshot) {
+                  final profiles = snapshot.data ?? const [];
+                  if (profiles.isEmpty) {
+                    return CreateProfilePage(
+                      constants: constants,
+                      database: database,
+                    );
+                  }
 
-                final activeProfiles =
-                    profiles.where((profile) => profile.active).toList();
-                if (activeProfiles.isEmpty) {
-                  return SelectProfilePage(profiles: profiles);
-                }
+                  final activeProfiles =
+                      profiles.where((profile) => profile.active);
+                  if (activeProfiles.isEmpty) {
+                    return SelectProfilePage(
+                      constants: constants,
+                      database: database,
+                      profiles: profiles,
+                    );
+                  }
 
-                return ContactListPage(
-                  database: db,
-                  profile: activeProfiles.first,
-                );
-              },
-            ),
+                  return ContactListPage(
+                    constants: constants,
+                    database: database,
+                    profile: activeProfiles.first,
+                  );
+                },
+              );
+            },
           ),
     );
   }

lib/ffi/tox_constants.dart

@@ -0,0 +1,3 @@
+export 'tox_constants.native.dart'
+    if (dart.library.html) 'tox_constants.web.dart'
+    if (dart.library.js) 'tox_constants.web.dart';

lib/ffi/tox_constants.native.dart

@@ -0,0 +1,30 @@
+import 'package:btox/api/toxcore/tox.dart';
+import 'package:btox/ffi/generated/toxcore.native.dart';
+
+ToxConstants toxcoreConstants(ToxFfi ffi) => ToxConstants(
+      addressSize: ffi.tox_address_size(),
+      conferenceIdSize: ffi.tox_conference_id_size(),
+      fileIdLength: ffi.tox_file_id_length(),
+      groupChatIdSize: ffi.tox_group_chat_id_size(),
+      groupMaxCustomLosslessPacketLength:
+          ffi.tox_group_max_custom_lossless_packet_length(),
+      groupMaxCustomLossyPacketLength:
+          ffi.tox_group_max_custom_lossy_packet_length(),
+      groupMaxGroupNameLength: ffi.tox_group_max_group_name_length(),
+      groupMaxMessageLength: ffi.tox_group_max_message_length(),
+      groupMaxPartLength: ffi.tox_group_max_part_length(),
+      groupMaxPasswordSize: ffi.tox_group_max_password_size(),
+      groupMaxTopicLength: ffi.tox_group_max_topic_length(),
+      groupPeerPublicKeySize: ffi.tox_group_peer_public_key_size(),
+      hashLength: ffi.tox_hash_length(),
+      maxCustomPacketSize: ffi.tox_max_custom_packet_size(),
+      maxFilenameLength: ffi.tox_max_filename_length(),
+      maxFriendRequestLength: ffi.tox_max_friend_request_length(),
+      maxHostnameLength: ffi.tox_max_hostname_length(),
+      maxMessageLength: ffi.tox_max_message_length(),
+      maxNameLength: ffi.tox_max_name_length(),
+      maxStatusMessageLength: ffi.tox_max_status_message_length(),
+      nospamSize: ffi.tox_nospam_size(),
+      publicKeySize: ffi.tox_public_key_size(),
+      secretKeySize: ffi.tox_secret_key_size(),
+    );

lib/ffi/tox_constants.web.dart

@@ -0,0 +1,28 @@
+import 'package:btox/api/toxcore/tox.dart';
+import 'package:btox/ffi/tox_ffi.web.dart';
+
+ToxConstants toxcoreConstants(ToxFfi ffi) => const ToxConstants(
+      addressSize: 38,
+      conferenceIdSize: 32,
+      fileIdLength: 32,
+      groupChatIdSize: 32,
+      groupMaxCustomLosslessPacketLength: 1373,
+      groupMaxCustomLossyPacketLength: 1373,
+      groupMaxGroupNameLength: 48,
+      groupMaxMessageLength: 1372,
+      groupMaxPartLength: 128,
+      groupMaxPasswordSize: 32,
+      groupMaxTopicLength: 512,
+      groupPeerPublicKeySize: 32,
+      hashLength: 32,
+      maxCustomPacketSize: 1373,
+      maxFilenameLength: 255,
+      maxFriendRequestLength: 921,
+      maxHostnameLength: 255,
+      maxMessageLength: 1372,
+      maxNameLength: 128,
+      maxStatusMessageLength: 1007,
+      nospamSize: 4,
+      publicKeySize: 32,
+      secretKeySize: 32,
+    );

lib/ffi/tox_ffi.dart

@@ -0,0 +1,3 @@
+export 'tox_ffi.native.dart'
+    if (dart.library.html) 'tox_ffi.web.dart'
+    if (dart.library.js) 'tox_ffi.web.dart';

lib/ffi/tox_ffi.native.dart

@@ -0,0 +1,18 @@
+import 'dart:ffi';
+import 'dart:io';
+
+import 'package:btox/ffi/generated/toxcore.native.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+export 'package:btox/ffi/generated/toxcore.native.dart' show ToxFfi;
+
+part 'tox_ffi.native.g.dart';
+
+@riverpod
+ToxFfi toxFfi(Ref ref) {
+  if (Platform.isAndroid) {
+    return ToxFfi(DynamicLibrary.open('libtoxcore.so'));
+  }
+  return ToxFfi(DynamicLibrary.process());
+}

lib/ffi/tox_ffi.web.dart

@@ -0,0 +1,13 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'tox_ffi.web.g.dart';
+
+final class ToxFfi {
+  const ToxFfi();
+}
+
+@riverpod
+ToxFfi toxFfi(Ref ref) {
+  return const ToxFfi();
+}

lib/ffi/toxcore.dart

@@ -0,0 +1,3 @@
+export 'toxcore.native.dart'
+    if (dart.library.html) 'toxcore.web.dart'
+    if (dart.library.js) 'toxcore.web.dart';